Shore fly (Diptera: Ephydridae) communities from Ria de Aveiro, with new records for Portugal


  • Catarina Prado e Castro University of Aveiro
  • Vasco Santos
  • Olga M.C.C. Ameixa



Shore fly, Saltmarshes, Wetlands, Ecotones, Faunistic, Iberian Peninsula


Saltmarshes are considered one of the most productive habitats in the world and exhibit a spatial zonation of its vegetation, from the intertidal flats to the seawall or dunes providing habitats to specific invertebrate assemblage adapted to regular submergence by seawater, and the resulting high soil salinity. These ecotones are essential to support coastal food webs and in providing nursery areas, for fish, crustaceans, and birds. Ria de Aveiro costal lagoon has been the focus of considerable research, but despite being part of Nature 2000 network, and being a Long-Term Ecological Research (LTER) site, insects have been systematically neglected. In this work we present new shore flies (Ephydridae) records from Ria de Aveiro saltmarshes, Portugal. Field collections were carried in seven locations along Ria de Aveiro saltmarshes areas by sweep-netting the dominating halophyte vegetation in September 2020. A total of 283 Ephydridae specimens from 8 genus and 17 species were collected. From these, 9 species are new records for Portuguese territory, 3 of them to the Iberian Peninsula. This work contributes to increase the dipterological knowledge regarding Ephydridae diversity in southern Europe, and to identify potential halophyte plant pests since several Ephydridae species are phytophagous.


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Ameixa O.M.C.C., Soares A.O., Soares A.M.V.M., Lillebø A.I. 2018. Ecosystem services provided by the little things that run the world, pp. 267–302. In: Şen B., Grillo O. (eds), Selected Studies in Biodiversity.

Ameixa O.M.C.C., Sousa A.I. 2020. Saltmarshes: Ecology, Opportunities, and Challenges. In: Filho W.L., Azul A.M., Brandli L., Salvia A.L., Wall, T. (eds), Encyclopedia of the UN Sustainable Development Goals. Life Below Water. Switzerland. Springer, Cham.

Bridgham S.D., Megonigal J.P., Keller J.K., Bliss N.B., Trettin, C. 2006. The carbon balance of north American wetlands. Wetlands, 26: 889–916,[889:TCBONA]2.0.CO;2

Carles-Tolrá M. 2002. Catálogo de los Diptera de España, Portugal y Andorra (Insecta). Monografías de La Sociedad Entomológica Aragonesa, 8: 1–323.

Carles-Tolrá M. (2009. Athyroglossa ordinata Becker: género y especie nuevos para Portugal (Diptera, Ephydridae). Boletín de La Sociedad Entomológica Aragonesa, 45: 236.

Carles-Tolrá M., Rosado J. 2009. Algunos dípteros de Portugal capturados mediante trampas de emergencia (Insecta, Diptera). Boletín de La Sociedad Entomológica Aragonesa, 44: 343–348.

Collins N. 1980. Population ecology of Ephydra cinerea Jones (Diptera: Ephydridae), the only benthic metazoan of the Great Salt Lake, USA. Hydrobiologia, 68: 99–112.

Dawah H.A., Ahmad S.K., Abdullah M.A., Zatwarnicki T. 2019. An overview of the Ephydridae (Diptera) of Saudi Arabia. Zootaxa, 4711(3): 401–445,

Doyle R.D., Grodowitz M., Smart R.M., Owens C. 2002. Impact of herbivory by Hydrellia pakistanae (Diptera: Ephydridae) on growth and photosynthetic potential of Hydrilla verticillata. Biological Control, 24(3): 221–229,

Foote B.A. 1995. Biology of shore flies. Annual Review of Entomology, 40: 417–442,

Grodowitz M.J., Smart M., Doyle R.D., Owens C.S., Bare R., Snell C., Freedman J., Jones H. 2004. Hydrellia pakistanae and H. balciunasi, insect biological control agents of hydrilla: boon or bust. Proceedings of the XI International Symposium on Biological Control of Weeds (27 April-2 May 2003), Canberra, Australia, pp. 529-538. CSIRO Entomology, Canberra, Australia.

Kubátová-Hiršová H. 2005. Temporal patterns in shore fly (Diptera, Ephydridae) community structure in a salt marsh habitat. Ecological Entomology, 30: 234–240,

Lillebø A.I., Ameixa O.M.C.C., Sousa L.P., Sousa A.I., Soares J.A, Dolbeth M., Alves F.L. 2015. The physio-geographical background and the ecology of Ria de Aveiro (chapter 3), pp. 21-29. In: Lillebø A.I., Stålnacke P., Gooch G.D. (eds), Coastal Lagoons in Europe: Integrated Water Resource Strategies. IWA Publishing, London.

Mathis W.N., Zatwarnicki T. 1995. World catalog of shore flies (Diptera: Ephydridae). International Memoirs of Entomology, 4: 1-423.

Mathis W.N., Zatwarnicki T. 1998. Family Ephydridae, pp. 537-570. In: Papp L., Darvas B. (eds), Contributions to a Manual of Palaearctic Diptera: Higher Brachycera. Vol. 3. Science Herald, Budapest.

Mathis W., Zatwarnicki T., Kubátová-Hiršová H. 2009. A revision of the shore-fly genus Philotelma Becker (Diptera: Ephydridae). Insect Systematics & Evolution, 40(2): 121-158,

Mathis W.N., Zatwarnicki T., Stuke J.-H., Deeming J.C. 2017. Order Diptera, family Ephydridae. A conspectus on shore-flies from the United Arab Emirates. Arthropod Fauna of the UAE, 6: 636-761.

Oosterbroek P. 2006. The European Families of the Diptera: Identification-Diagnosis-Biology. KNNV Publishing, Utrecht, the Netherlands, 205 pp.

Zatwarnicki T. 2002. Ephydridae, pp. 164-166. In: Carles-Tolrá M. (ed), Catálogo de los Diptera de España, Portugal y Andorra (Insecta). Monografías SEA, Vol 8. Zaragoza.

Zatwarnicki T. 2011. The Ephydridae of Sardania (Diptera), pp. 733–748. In: Nardi G., Whitmore D., Bardiani M., Birtele D., Mason F., Spada L. & Cerretti P. (eds), Biodiversity of Marganai and Montimannu (Sardinia). Research in the framework of the ICP Forests network. Conservazione Habitat Invertebrati 5.

Zatwarnicki T. 2018. Solving the puzzle of taxonomic position of the petroleum fly by resurrection of Diasemocera Bezzi from Psilopa Fallén (Diptera: Ephydridae) with proposed specific and generic synonymies. Annales Zoologici, 68(3): 527-552,

Zatwarnicki T., Mathis W.N. 2011. Heterogeneity in shore flies – the case of Glenanthe Haliday (Diptera: Ephydridae) in the Old World. Annales de la Société Entomologique de France, 47 (3-4): 418-443,




How to Cite

Prado e Castro, C., Santos, V. ., & Ameixa, O. M. . (2022). Shore fly (Diptera: Ephydridae) communities from Ria de Aveiro, with new records for Portugal. Fragmenta Entomologica, 54(1), 95–100.



Research Articles